TrojanDownloader_O97M_Obfuse_RVK_MTB

YARA detection rule by roadwy

TrojanDownloader:O97M/Obfuse.RVK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00

rule TrojanDownloader_O97M_Obfuse_RVK_MTB{
	meta:
		description = "TrojanDownloader:O97M/Obfuse.RVK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_00_0 = {47 65 74 4f 62 6a 65 63 74 28 4e 75 74 73 28 22 31 33 36 31 32 32 31 32 37 31 32 36 31 32 30 31 32 36 31 33 33 31 33 32 30 37 35 22 29 29 } 		$a_00_1 = {41 6c 6d 6f 6e 64 73 20 3d 20 52 69 67 68 74 28 4a 65 6c 6c 79 2c 20 4c 65 6e 28 4a 65 6c 6c 79 29 20 2d 20 33 29 } 		$a_00_2 = {50 65 61 72 73 20 3d 20 43 68 72 28 42 65 65 74 73 20 2d 20 31 37 29 } 		$a_00_3 = {4c 6f 6f 70 20 57 68 69 6c 65 20 4c 65 6e 28 4d 69 6c 6b 29 20 3e 20 30 } 		$a_00_4 = {47 65 74 28 4e 75 74 73 28 22 31 30 34 31 32 32 31 32 37 30 36 38 30 36 37 31 31 32 30 39 37 31 33 31 31 32 38 31 31 36 31 31 38 31 33 32 31 33 32 22 29 29 2e 43 72 65 61 74 65 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1) >=5
 
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

db05169c-a27b-40c8-aab9-a94497152ce8

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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